Mathematics
How much bigger is 5x2y2 - 18xy2 - 10x2y than - 5x2 + 6x2y - 7xy?
Algebraic Expressions
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Answer
(5x2y2 - 18xy2 - 10x2y) - (- 5x2 + 6x2y - 7xy)
= 5x2y2 - 18xy2 - 10x2y + 5x2 - 6x2y + 7xy
= 5x2y2 - 18xy2 + (- 10x2y - 6x2y) + 5x2 + 7xy
= 5x2y2 - 18xy2 - 16x2y + 5x2 + 7xy
Hence, (5x2y2 - 18xy2 - 10x2y) is bigger than (- 5x2 + 6x2y - 7xy) by (5x2y2 - 18xy2 - 16x2y + 5x2 + 7xy)
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